Micrometer line-spacing adjustment for writing-machines



P. B. TINGLEY.

MICROMETER LINE SPACING ADJUSTMENT FOR WRITING MACHINES.

APPLICATION FILED FEB. 2, I920.

Patented June 14, 19211 &

INVENTOR ATTORNEY UNITED STATES earner oFF cE.

31111.0 B. TINGLEY, or NEwYonK, N. Y.

' 3 MIGROMETER LINE-SPACING ADJUSTMENT FOR WRITING-MACHINES.

Application filed February 2,1920. Serial No -355,884.

.mechanism, have been applied to writing machines to adapt them to space irregularly when such irregular spacing may be desirable.

This invention has for its object to provide a novel micrometer line spacing adjustmentfor such variable spacing mechanism. r g

In the accompanying drawing forming a part of this specification, I have shown the novel micrometer line spacing adjustment in connection with variable spacing mechanism which may be applied to writing machines of any make, either old or new.

Figure 1 is a plan view of variable spacing mechanism equipped w1th my novel micrometer adjustment, showing so much of a writing machine as is necessary to illustrate the invention;

Fig. '2 a sectional view on, line 2-2 1n Fig. 1, looking in the direction of the arrows,

Fig. 3 an elevation of variable spacing mechanism as seen from the opposite side of Fig. 2, and equipped with my novel micrometer adjustment, showing the spaclng mechanism in its gripping position on the at1ng lever, as. ind cated at 44. pin 45 I extending downwardly from boss 41 has atclutch drum;

Fig. 4 a sectional view on line 4-4 m Fig. 2, showing the scroll wheel in releasing position with respect to the toothed slide of the spacing mechanism;

. Fig. 5 a perspective view of the scroll wheel;

' Fig. 6 an elevation correspondlng with Fig. 3, but disclosing a modified form of scroll wheel, and showing the spacing mechanism in its releasing position on the clutch drum; and V v Fig. 7 is a fragmentary end elevation of the structure of Fig. 6.

20 denotes the frame of any writing machine, 21 the 23 the handle said shaft.

A clutch drum 25 is mounted on the. shaft to turn therewith, and on this drum is a clutch band which consists of an upper clutch member 26, a lower clutch, member 27, and a link 28. The upper and lower clutch members are hinged together as lndicated at 29, and the lower end of the 11111; is hinged to the lower clutch platen, 22 the shaft therefor,

Specification of Letters Patent. yatented June 14, 1921.

and 24 theratchet wheel on member as indicated at 30. There is an eccentric opening 31 in the upper end of the link and 1n thls opening is loosely fitted a perforated eccentric hub 32 having an operating lever 33. A screw 34 passing through the perforation in the eccentric hub, through the eccentric opening, and through-the upper clutch member, connectsv these parts together. Byreferring to Fig. 2 it will be seen that when the operating lever of the,

hub is thrown from left to right,-shoulder 35 on the hub will engage shoulder 36 of the openlng and force the link to travel a short distance upwardly, thus drawing the lower clutch member into gripping relation with respect to the clutch drum. 37 denotes a lug on the operating lever which is adapted to engage the link when the clutch band isin its releasing position on the clutch drum.

38 denotes the spacing lever of the machine, 39 a block arranged in the frame for sliding movement, and 40 a pin extending from the block and which'is adapted to be engaged by the spacing lever, as is plainly disclosed in Figs. 1 and 2. The block is also provided with a boss .41 to which one end of a lever 42 is pivotally attached by means of a screw 43. The other end of this last mentioned lever is pivoted to the operupper'clutch member is provided with an are shape groove 72 and in this groove is ar- ,rangeda toothed slide 47.. .A. scroll wheel 48 is also secured to the upper clutch member, the latter being cut away as indicated at 73 so'that the scroll 74 of the scroll wheel may engage the teeth 75 on the slide. At

4:9 is indicated a stop pin carried by the frame and so arranged that end 50 of the toothed slide may engage it. An extension 51 on the upper clutch member engages the stop pin when the clutch band is in its releasing position on the clutch drum and the spacing mechanism is held in the position shown in Figs. 1 and 2.

It will be apparent that when the spaclng lever is thrown in the direction indlcated by the arrow in Fig. 1, the operating lever of the eccentric hub will immediately be thrown '50 that the clutchband will grip the clutch drum and rotateflthe platen. As soonas the end of thetoothed slide strikes the stop pin, the rotation of the platen will cease. Hence, by adjusting the toothed slide in theupper clutch member, any desired spacing may be *obtained.

Two forms of scroll wheel are disclosed.

That of Figs. 1 to 5 has its scroll arranged in a plane which is tangent to the toothed slide, and thatof Figs. 6 and 7 has its scroll arranged in avertical plane which is transverse with respect to the slide. The scroll wheel of Figs. 1 to 5 is arranged to oscillate on a vertical expansion stud 52 having a base 53 which passes to a point beyond the "scroll and thus assists in balancing the wheel.

Integral with or attached to the base is a pivot block 54; which is attached to the upper clutch member byineans of a pin 55 passing through lugs 56 and 57 extending from the pivot block and the upper clutch member, re-

spectively. spring 58 normally holds the scroll wheelso that its scroll engages the teeth of the toothed slide,as shown in Fig. 3. A cap screw 59 engages the expansion stud andholdsthe scroll wheel thereon, and is adapted to lock the scroll wheel in any of its adjusted positions. The modified scroll wheel of Figs. 6 and 7 is arranged to oscillate ahorizontally arranged screw 60 which is *embedded in pivot block 61. A pin 62 45 passingthrough the upper clutch member and through extensions 63 on the block, pivots the block to the member. A fiat spring64 secured to the upper clutch member normally holds the scroll in the position indicated in F ig. 6.

In each instance. the scroll wheel is graduated as indicated at 65, the graduation accurately denoting the distance which the scroll forces the toothed slide to travel .as thexwheel is rotated. An indicating pointer 66 is provided for each graduation. A scale 67 on the outer periphery of the upper clutch member corresponds with the ordinary spacngs'of any writing machine.

An indicating pointer 68 for scale '67 is attached to the toothed slide, asshown. A finger piece 69 is securedto the toothed slide. When it is desired to set the toothed slide tomake a regular spacing as indicated by the scale on the upper clutch member, the

toothed slide to make an irregular spacing,

all that is necessary is to rotate the scroll wheel the proper distance indicated-by the graduation thereon, as will be readily under-- stood. The toothed slide may be set to make any desired regular spacing and then the micrometer adjustment may be brought into action to obtain a spacing greater or less than that regular spacing, or all of the adjustments may be made by rotating the scroll wheel." It will be apparent that the micrometer adjustment of the present invention affords a very accurate means" for -obtaining irregular spacings of any desired magnitude. i

In using the variable spacer shown and described, it is necessary that the ratchet wheel be free from the spring pressed roller 70 of the machine, or that it be free fromthe- 3 h shaft. I have shown mechanism, indicated generally by 71, similar to that of my Patent No. 1,312,063, granted August-5,'l9l9, for causing the ratchet wheel to grip the shaft or to be released therefrom. It may be ob served that this mechanism formsno part of the present invention. In using the spacer, the mechanism referred to is in its releasing position with respect to the shaft. However,

when it is desired to turn from a line which is being written upon, the mechanism is operated so that the ratchet wheelis forced to turn with the shaft. When now it is desired to return to the writing line, this may be accurately done by engaging the same notch in the ratchet wheel with the roller as was before engaged.

What I claim is: V

1. A micrometer line spacing adjustment for writing machines comprising-a platen,

a shaft therefor, aspacing device thereon,

clamping means uniting the shaft and spacing device, a spacinglever, means for setting the spacing device for a regular space or a multiple thereof and a scroll wheel thereon for altering said regular space after setting and capable'of' setting an irregular space in said setting device.

2. A micrometer line spacing adjustment for writing machines comprising a platen, a shaft therefor, a spacing device thereon, clamping means uniting'the shaft and the spacing device, a spacing lever, and means for setting the spacing device and looking it at a regular spacing interval and at anirregular spacing interval.

3. A micrometer line spacing adjustment for writing machines comprising a space controlling member, a scale therefor carrying indications of settings for full line spacing and a plurality thereof, a graduated scroll wheel member having a portion contacting said space controlling member and at times acting as a lock for said space controlling member and at other times as an actuator therefor.

4. A micrometer line spacing adjustment for Writing machines comprising a sliding space regulating member, means for retaining said member in locked position so as to hold the space regulating member in full line spacing position, and means to move the locln'g means so as to produce other than full line spacing.

5. A micrometer line spacing adjustment for writing machines, comprising a graduated scroll wheel pivotally attached to the spacing mechanism of the machine and cooperating with a toothed slide for varying the magnitude of the spacings of said spacing mechanism, said scroll wheel being adapted to swing on its pivot to release said toothed slide.

6. A micrometer line spacing adjustment for writing machines, comprising a graduated scroll wheel pivotally attached to a part of the machine and cooperating with a toothed slide for varying the magnitude of the spacings of the spacing mechanism of said machine, said scroll wheel being adapted to swing on its pivot to release said toothed slide.

7. A micrometer line spacing adjustment for writing machines comprising a space regulating member, a scale therefor, means for locking said member in correspondence with said scale, means for moving said looking means from locking position, a graduated scale therewith, and means for indicating the movements of the locking means.

8. A micrometer line spacing adjustment for writing machines, comprising a graduated scroll wheel pivotally attached to a part of the machine and cooperating with a toothed slide for varying the magnitude of the spacings of the spacing mechanism of said machine, said scroll wheel being adapted to swing on its pivot to release said toothed slide, and said toothed slide carrying means for adjusting it independently of said scroll wheel.

9. A micrometer line spacing adjustment for writing machines, comprislng a graduated scroll wheel pivotally attached to the spacing mechanism of the machine and co, operating with a toothed slide for varying the magnitude of the spacings of said spacing mechanism, said scroll wheel being adapted to swing on its pivot to release said toothed slide, and said toothed slide carrying means for adjusting it independently of said scroll wheel.

10. A micrometer line spacing adjustment for writing machines, comprisin a graduated scroll wheel and a toother side cooperating therewith, said slide arranged in an arc shape groove in the spacing mechanism of said machine and adapted to be engaged by the scroll of said scroll wheel, and said scroll wheel being pivoted to said spacing mechanism and adapted to be swung on its pivot to release said scroll from said toothed slide, whereby said. toothed slide may be adjusted independently of said scroll wheel.

11. A micrometer line spacing adjustment for writing machines, comprising a space regulating member, a scale therefor, means for locking said member in correspondence with said scale, means for moving said locking means from locking position, a graduated scale therewith, .-means for indicating the movement of the locking means and means for shifting the locking means out of locking position.

12. A micrometer line spacing adjustment for writing machines comprising a space controlling member, a scale therefor carrying indications of settings of said control member, a graduated scroll wheel, a scale therefor, means for indicating the position of the scroll wheel, and means for moving said space control member so that its settings are indicated onthe second scale.

In testimony whereof I afiix my signature.

PHILO B. TINGLEY. 

